From 7ce1526ed2bf7a7499a843d38b30095fa2894659 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Wed, 5 Mar 2014 19:59:50 +0100 Subject: env: Add env_export() wrapper Implement env_export() wrapper, so that all implementers of saveenv() don't have to call hexport_r(), crc32() etc. sequence . This trims down a bit of code duplication. Signed-off-by: Marek Vasut --- common/env_common.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'common/env_common.c') diff --git a/common/env_common.c b/common/env_common.c index c0bfc2f..fe35ff4 100644 --- a/common/env_common.c +++ b/common/env_common.c @@ -172,6 +172,23 @@ int env_import(const char *buf, int check) return 0; } +/* Emport the environment and generate CRC for it. */ +int env_export(env_t *env_out) +{ + char *res; + ssize_t len; + + res = (char *)env_out->data; + len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL); + if (len < 0) { + error("Cannot export environment: errno = %d\n", errno); + return 1; + } + env_out->crc = crc32(0, env_out->data, ENV_SIZE); + + return 0; +} + void env_relocate(void) { #if defined(CONFIG_NEEDS_MANUAL_RELOC) -- cgit v1.1